diff --git a/src/misc/utils.rs b/src/misc/utils.rs
index e3cdeba..418ce6b 100644
--- a/src/misc/utils.rs
+++ b/src/misc/utils.rs
@@ -1,5 +1,9 @@
+use actix_web::{
+    http::header::{self, ContentType, TryIntoHeaderValue},
+    HttpRequest, HttpResponse, Responder,
+};
 use cached::proc_macro::cached;
-use reqwest::Client;
+use reqwest::{Client, StatusCode};
 
 use crate::config::FileConfig;
 
@@ -26,3 +30,18 @@ pub fn get_url(fc: FileConfig) -> String {
 pub fn make_kw(list: &[&str]) -> Option<String> {
     Some(list.join(", "))
 }
+
+/// Send HTML file
+pub struct Html(pub String);
+impl Responder for Html {
+    type Body = String;
+
+    fn respond_to(self, _req: &HttpRequest) -> HttpResponse<Self::Body> {
+        let mut res = HttpResponse::with_body(StatusCode::OK, self.0);
+        res.headers_mut().insert(
+            header::CONTENT_TYPE,
+            ContentType::html().try_into_value().unwrap(),
+        );
+        res
+    }
+}
diff --git a/src/routes/agreements.rs b/src/routes/agreements.rs
index d26bd81..3589c37 100644
--- a/src/routes/agreements.rs
+++ b/src/routes/agreements.rs
@@ -1,5 +1,5 @@
 use crate::{config::Config, misc::utils::get_url, template::Infos};
-use actix_web::{get, routes, web, HttpResponse, Responder};
+use actix_web::{get, http::header::ContentType, routes, web, HttpResponse, Responder};
 use cached::proc_macro::once;
 use ramhorns::Content;
 
@@ -7,7 +7,9 @@ use ramhorns::Content;
 #[get("/.well-known/security.txt")]
 #[get("/security.txt")]
 async fn security(config: web::Data<Config>) -> impl Responder {
-    HttpResponse::Ok().body(build_securitytxt(config.get_ref().to_owned()))
+    HttpResponse::Ok()
+        .content_type(ContentType::plaintext())
+        .body(build_securitytxt(config.get_ref().to_owned()))
 }
 
 #[derive(Content, Debug)]
@@ -32,7 +34,9 @@ fn build_securitytxt(config: Config) -> String {
 
 #[get("/humans.txt")]
 async fn humans(config: web::Data<Config>) -> impl Responder {
-    HttpResponse::Ok().body(build_humanstxt(config.get_ref().to_owned()))
+    HttpResponse::Ok()
+        .content_type(ContentType::plaintext())
+        .body(build_humanstxt(config.get_ref().to_owned()))
 }
 
 #[derive(Content, Debug)]
@@ -57,7 +61,9 @@ fn build_humanstxt(config: Config) -> String {
 
 #[get("/robots.txt")]
 async fn robots() -> impl Responder {
-    HttpResponse::Ok().body(build_robotstxt())
+    HttpResponse::Ok()
+        .content_type(ContentType::plaintext())
+        .body(build_robotstxt())
 }
 
 #[once]
diff --git a/src/routes/blog.rs b/src/routes/blog.rs
index a941d8f..d567bc9 100644
--- a/src/routes/blog.rs
+++ b/src/routes/blog.rs
@@ -21,7 +21,7 @@ use crate::{
         markdown::{
             get_metadata, get_options, read_file, File, FileMetadataBlog, TypeFileMetadata,
         },
-        utils::{get_url, make_kw},
+        utils::{get_url, make_kw, Html},
     },
     template::{Infos, NavBar},
 };
@@ -30,7 +30,7 @@ const MIME_TYPE_RSS: &str = "application/rss+xml";
 
 #[get("/blog")]
 async fn index(config: web::Data<Config>) -> impl Responder {
-    HttpResponse::Ok().body(build_index(config.get_ref().to_owned()))
+    Html(build_index(config.get_ref().to_owned()))
 }
 
 #[derive(Content, Debug)]
@@ -185,7 +185,7 @@ struct BlogPostTemplate {
 
 #[get("/blog/p/{id}")]
 async fn page(path: web::Path<(String,)>, config: web::Data<Config>) -> impl Responder {
-    HttpResponse::Ok().body(build_post(path.into_inner().0, config.get_ref().to_owned()))
+    Html(build_post(path.into_inner().0, config.get_ref().to_owned()))
 }
 
 fn build_post(file: String, config: Config) -> String {
diff --git a/src/routes/contact.rs b/src/routes/contact.rs
index b348a2a..91b7775 100644
--- a/src/routes/contact.rs
+++ b/src/routes/contact.rs
@@ -1,4 +1,4 @@
-use actix_web::{get, routes, web, HttpRequest, HttpResponse, Responder};
+use actix_web::{get, routes, web, HttpRequest, Responder};
 use cached::proc_macro::once;
 use glob::glob;
 use ramhorns::Content;
@@ -8,7 +8,7 @@ use crate::{
     config::Config,
     misc::{
         markdown::{read_file, File, TypeFileMetadata},
-        utils::make_kw,
+        utils::{make_kw, Html},
     },
     template::{Infos, NavBar},
 };
@@ -27,7 +27,7 @@ pub fn pages(cfg: &mut web::ServiceConfig) {
 
 #[get("")]
 async fn page(config: web::Data<Config>) -> impl Responder {
-    HttpResponse::Ok().body(build_page(config.get_ref().to_owned()))
+    Html(build_page(config.get_ref().to_owned()))
 }
 
 #[derive(Clone, Debug)]
diff --git a/src/routes/contrib.rs b/src/routes/contrib.rs
index dedb5f7..82802f9 100644
--- a/src/routes/contrib.rs
+++ b/src/routes/contrib.rs
@@ -4,17 +4,17 @@ use crate::{
     config::Config,
     misc::{
         github::{fetch_pr, ProjectState},
-        utils::make_kw,
+        utils::{make_kw, Html},
     },
     template::{Infos, NavBar},
 };
-use actix_web::{get, web, HttpResponse, Responder};
+use actix_web::{get, web, Responder};
 use cached::proc_macro::once;
 use ramhorns::Content;
 
 #[get("/contrib")]
 async fn page(config: web::Data<Config>) -> impl Responder {
-    HttpResponse::Ok().body(build_page(config.get_ref().to_owned()).await)
+    Html(build_page(config.get_ref().to_owned()).await)
 }
 
 #[derive(Content, Debug)]
diff --git a/src/routes/index.rs b/src/routes/index.rs
index 6f1fa8e..b8291d8 100644
--- a/src/routes/index.rs
+++ b/src/routes/index.rs
@@ -1,16 +1,16 @@
-use actix_web::{get, web, HttpResponse, Responder};
+use actix_web::{get, web, Responder};
 use cached::proc_macro::once;
 use ramhorns::Content;
 
 use crate::{
     config::Config,
-    misc::utils::make_kw,
+    misc::utils::{make_kw, Html},
     template::{Infos, NavBar},
 };
 
 #[get("/")]
 async fn page(config: web::Data<Config>) -> impl Responder {
-    HttpResponse::Ok().body(build_page(config.get_ref().to_owned()))
+    Html(build_page(config.get_ref().to_owned()))
 }
 
 #[derive(Content, Debug)]
diff --git a/src/routes/not_found.rs b/src/routes/not_found.rs
index c257142..861d6a6 100644
--- a/src/routes/not_found.rs
+++ b/src/routes/not_found.rs
@@ -1,15 +1,15 @@
-use actix_web::{web, HttpResponse, Responder};
+use actix_web::{web, Responder};
 use cached::proc_macro::once;
 use ramhorns::Content;
 
 use crate::{
     config::Config,
-    misc::utils::get_url,
+    misc::utils::{get_url, Html},
     template::{Infos, NavBar},
 };
 
 pub async fn page(config: web::Data<Config>) -> impl Responder {
-    HttpResponse::NotFound().body(build_page(config.get_ref().to_owned()))
+    Html(build_page(config.get_ref().to_owned()))
 }
 
 #[derive(Content, Debug)]
diff --git a/src/routes/portfolio.rs b/src/routes/portfolio.rs
index 70975c2..e0fad8d 100644
--- a/src/routes/portfolio.rs
+++ b/src/routes/portfolio.rs
@@ -1,4 +1,4 @@
-use actix_web::{get, web, HttpResponse, Responder};
+use actix_web::{get, web, Responder};
 use cached::proc_macro::once;
 use glob::glob;
 use ramhorns::Content;
@@ -7,14 +7,14 @@ use crate::{
     config::Config,
     misc::{
         markdown::{read_file, File, TypeFileMetadata},
-        utils::make_kw,
+        utils::{make_kw, Html},
     },
     template::{Infos, NavBar},
 };
 
 #[get("/portfolio")]
 async fn page(config: web::Data<Config>) -> impl Responder {
-    HttpResponse::Ok().body(build_page(config.get_ref().to_owned()))
+    Html(build_page(config.get_ref().to_owned()))
 }
 
 #[derive(Content, Debug)]
diff --git a/src/routes/web3.rs b/src/routes/web3.rs
index 0150b46..e3242a8 100644
--- a/src/routes/web3.rs
+++ b/src/routes/web3.rs
@@ -1,11 +1,15 @@
-use actix_web::{get, web, HttpResponse, Responder};
+use actix_web::{get, web, Responder};
 use cached::proc_macro::once;
 
-use crate::{config::Config, misc::utils::make_kw, template::Infos};
+use crate::{
+    config::Config,
+    misc::utils::{make_kw, Html},
+    template::Infos,
+};
 
 #[get("/web3")]
 async fn page(config: web::Data<Config>) -> impl Responder {
-    HttpResponse::Ok().body(build_page(config.get_ref().to_owned()))
+    Html(build_page(config.get_ref().to_owned()))
 }
 
 #[once]